Refine Your Search

Search Results

Viewing 1 to 2 of 2
Technical Paper

Hybrid Projectile Transformation Condition Detection System for Extended Selectable Range

2013-09-17
2013-01-2203
A Hybrid Projectile (HP) is a tube launched munition that transforms into a gliding UAV, and is currently being researched at West Virginia University. In order to properly transform, the moment of transformation needs to be controlled. A simple timer was first envisioned to control transformation point for maximum distance. The distance travelled or range of an HP can directly be modified by varying the launch angle. In addition, an internal timer would need to be reprogrammed for any distance less than maximum range due to the nominal time to deployment varying with launch angle. A method was sought for automatic wing deployment that would not require reprogramming the round. A body angle estimation system was used to estimate the pitch of the HP relative to the Earth to determine when the HP is properly oriented for the designed glide slope angle. It also filters out noise from an inertial measurement unit (IMU).
Technical Paper

Development and Testing of a Wing Morphing Mechanism for the Control of a Swept Wing Tailless Aircraft

2005-10-03
2005-01-3391
Inspired by flight in nature, work done by Lippisch, the Hortens, and Northrop offered a chance at achieving the efficiency of bird flight with swept-wing tailless aircraft. Tailless designs have been forced incorporate aerodynamic compromises for control, which have inhibited potential advantages. A morphing mechanism, which changes the twist of wing and can provide pitch, roll and yaw control for a tailless swept wing aircraft. This mechanism is the first step is a series of morphing techniques, which will lead to more fluid, bird-like flight. This research is investigating the design of a morphing wing to improve the flight characteristics of a tailless aircraft. Flight demonstrator and wind-tunnel data is being used to evaluate the stability, control and efficiency of a morphing swept wing tailless aircraft.
X